Brake shoe for typesetting machines



Aug. 30, 1938. n. J. LLOYD BRAKE SHOE FOR TYPESETTING MACHINES Filed May 16, 1938 Srl/UWM ab @05E/ern. LLo yD I7 Patented ug. 30, 1938 UNITED STATES PATENT OFFEQE `9 claims.

The present invention relates generally to an improvement in typesetting machines and particularly to a brake mechanism for restraining the movement of the assembler rail while aline of matrices are being assembled in the assembler box.

An ob-ject of the present invention is the provision of a brake shoe that will not lose its bite on the assembler rail.

A still further object of the present invention is the provision of brake shoes that will prevent looseness in the line o f mats being formed and thus eliminate V-shaped openings and transposition of Words, and space bands.

A still further object of the present invention is the provision of a rotatable means in the top or upper shoe, and a detachably secured means in the lower shoe, the said means adapted for engagement with the assembler rail.

Other objects of the invention will be mo-re fully understood from` the following description and claims when the same are read in connection with the drawing accompanying and forming part of this specification in which:-

Figure l is a fragmentary front elevational View oi' the assembling mechanism of a typesetting machine and illustrating the improved brake shoes in gripping position.

Figure 2 is an end elevational View of the brake lever per se upon which the detachable shoes are mounted, the assembler rail being shown in cross section.

Figure 3 is a side elevational View per se of the upper brake shoe and illustrating the rotatable ball mounted bearing at the extreme left hand end.

Figure 4 is a bottom view,of the upper shoe and illustrating the position therein of the rotatable bearing.

Figure 5 is a side elevational view of the lower brake shoe and illustrating the xed ball bearing at the extreme right end, the Vertical dotted line representing a punch bore.

Figure 6 is a top plan view of the lower shoe and illustrating the position therein of the xed bearing, the dotted line indicating the position or" the punch bore.

Figure '7 is an enlarged detail View of the lever carrying the shoes and illustrating the shoes gripping the assembler rail, parts being shown fragmentarily.

Figure 8 is an enlarged detail view of the lever carrying the shoes and illustrating the shoes out of contact with the assembler rail for the return of the assembler rail to its normal position, parts being sho-Wn fragmentarily.

Referring to the drawing, the numeral 9 represents the frame of a typesetting machine to which the assembler rail mechanism is secured. The numeral I represents the casing for the matrice chutes, Il the assembler rail and l2 the reciprocating mechanism therefor.

Pivotally mounted at I3 on the frame 9 is a brake I4 that comprises a lever l5, the lower portion of which is provided with ears I@ and il. My novel improved brake, comprises an upper shoe I8 and a lower shoe i9. The upper shoe I8 is provided with a bore 20 into which is mounted for rotatable movement a ball 2l, the bore 2B being slightly in excess of the diameter of the ball 2l. To the right of the midway point, the shoe I8 is provided with a through transverse bore 22 that receives a threaded member 23, the threaded member engaging a threaded bore 24 in the lever E5, detachably securing the shoe I8 to the lever. It is to be noted that the top face of the shoe I8 impinges the lower face of the ear HG. The lower shoe i9 is provided with a bo-re 25 into which is detachably secured a ball 26. Centrally of the bore 25 is a bore 2l and this bore serves as a means for punching out the ball 26 for replacement or turning the ball over to replace a worn spot on the spherical face of the ball. The provision of a ball provides a gripping means that may be used for an indefinite time due to the fact that only a small area of the spherical surface engages the rail. To the left of the midway point, the shoe I9 is provided with a transverse bore 28 whichl receives a threaded member 29, the threaded member 29 engaging a threaded bore 3i) in the lever I5, detachably securing the shoe lil to the lever. The bottom face of the shoe i9 rests on the upper face of the ear Il. In View of the differences in construction of the two shoes as recited, the upper shoe i8 is marked with the letter U and the lower shoe I9 with the letter L to insure the proper positioning of the shoes on the lever I5.

As illustrated in the drawing, Figures l, 7, and 8, the shoes are assembled on the brake lever I5, the balls disposed diagonally and due to this positioning of the balls a more positive gripping of the assembler rail is eiiected. The provision of the balls, provides a gripping means in which only a small spherical portion oi the balls engage the edges of the assembler rail, thus insuring a tighter grip than the flat edge brake shoes commonly used.

The description about to be made of the operation of the brake involves mechanism well known in the art and it is deemed unnecessary `to give same in minute detail, therefore a general description is deemed sufficient. In the operation of my improved brake shoes, as the star wheel (not shown) deposits the matrices on the assembler rail, the assembler rail I I is moved to the left against the tension of a spring (not shown) that is connected to an arm 3l on the lever 3|, the spring tension acting against the assembler rail through the intermediate pivoted lever 3| having its lower end 33 connected to one end of a link 34, the other end of the link 34 connected at 35 to the assembler rail II. Asv the assembler rail II is moved to the left during the composition of a line, it is held in its displaced position by the brake I4 that comprises the v.lever I5,the lower end of which carries the upper shoe I8 in which is mounted the rotatable bearing 2i that engages the upper edge of the assembler rail II and the lower shoe I 9 having the` Xed bearing 26 that engages the lower edge of the assembler rail as illustrated in the enlarged detail view of Figure 7 of the drawing. The brake shoes I8 and I9 are held in contact with the assembler rail II by the sp-ring 393, one end pulling on the brake lever I5, one end of the spring being secured to the brake lever I and the other end secured to the bracket 3l on the frame. When the composed line is transferred to an assembling elevator (not shown) means well known in the art release the brake I4, the brake lever assuming the position illustrated in Figure 8 of the drawing and a1- lowing the assembler rail and itsl associated mechanism to return to its normal position. It is to be noted in Figure 8, that in the return position the balls do not engage the assembler rail.

My improved brake shoes are adapted for use on typesetting machines, such as the Intertype and Linotype machines and require nochange of mechanism, simply remove screw in the old type of shoes and replace the old shoes with my improved ball grip shoes.

Changes in detail may be made without departing from the scope of the claims hereto appended.

What I claim is:-`

1. A brake for assembler rails of typesetting machines, comprising a lever, shoes detachably secured to said lever and spherical meansy mounted in said shoes adapted to bear on the top and bottom edges of said rail.

2. A brake for assembler rails of typesetting machines, comprising a. lever, shoes detachably secured to said lever, spherical means mounted in said shoes opposite the top and bottom surfaces of the rail, said spherical means disposed at' an angle to each other.

3. A brake for assembler rails of typesetting machines, comprising a lever, shoes detachably secured to said lever, spherical means mounted in said shoes, one of said shoes provided with spherical removal means, said spherical means disposed at an angle to each other and adapted to bear on the top and bottom edges of said rail.

4. A brake for assembler rails of linotype machines comprising an upper shoe and a lower shoe, gripping means mounted in said shoes bearing on the top and bottom surfaces of the rail, the vgripping means in the upper shoe loosely mounted for rotative movement, the gripping means in the lower shoe xedly mounted therein, said lower shoe provided with a punch bore for permitting insertion of removing means for said gripping means.

5. A brake for assembler rails of linotype machines comprising an upper shoe and a lower shoe,

spherical means mounted in each of said shoes, a portion of said spheres adapted for engagement with the edges of said assembler rails, and means inthe lower shoe for permitting insertion of removing means or said spherical means.

6. A, brake for assembler rails of typesetting machines comprising a lever, an upper shoe and a lower shoe, sperical means mounted in said shoes adapted to bear on the top and bottom edges of the rail, the spherical means in the upper shoe loosely mounted for rotative movement, the spherical means in the lower shoe xedly mounted therein, said shoes detachably secured to said lever and a punch bore in said lower shoe for permitting insertion of removing means for said spherical means.

'7. A brake for assembler rails of linotype machines comprising an upper shoe and a lower shoe, spherical means mounted in each of said shoes a portion of said spherical means adapted for engagement with the edges of said rails said spherical means disposed in dilerent vertical planes, a portion of the periphery of said spheres adapted for engagement with the edges of said assembler rails, the lower shoe provided with a punch bore for permitting insertion ofl removing means for said spherical means.

8. A brake for assembler rails of typographical machines, comprising a lever, shoes detachably secured to said lever, spherical means mounted in said shoes for engagement with the top and bottom edges of said rail, one of said spherical means loosely mounted for rotative movement, the other of said spherical means xedly and detachably secured therein.

9. A brake for assembler rails of typesetting machines, comprising an upper shoe and a lower shoe, a ball mounted in each of said shoes for engagement with the top and bottom edges of said rail, the ball in the upper shoe loosely mounted for rotative movement, the ball in the lower shoe ilXedly secured therein, the lower shoe provided with a means for insertion of ball removing means.

` ROBERT J. LLOYD. 

